60 results about "Thioxanthene" patented technology

The invention belongs to the technical field of photoelectric materials, and particularly relates to luminescent materials based on thioxanthene-fluorene spiral structures and organic photoelectric devices adopting the materials as luminescent layers. The luminescent materials adopts the thioxanthene-fluorene spiral structures as skeleton units. Intermediates are prepared through Ullmann reactions, and then the target compounds are obtained through Ullmann reactions or Suzuki reactions. The materials are single in structure and definite in molecular weight. The spiral structures of the materials can adjust an intermolecular accumulation manner, thus effectively inhibiting exciplex luminescence. The materials have deep meaning for development of high-effect devices. The organic photoelectric devices adopting the materials as the luminescent layers have good luminescent properties and can be used for small organic molecule light emitting diodes.

A holographic recording medium includes a recording layer. The recording layer includes a framework being expressed with the following general formula (1),

In the above formula (1), Ar represents a substituted or unsubstituted group selected from benzothiophene group, naphthothiophene group, dibenzothiophene group, thienothiophene group, dithienobenzene group, benzothiazole group, naphthothiazole group, benzoisothiazole group, naphthoisothiazole group, phenothiazine group, phenoxathiin group, dithianaphthalene group, thianthrene group, thioxanthene group, and bithiophene group. In addition, n is an integer from 1 to 4.

Acid generator compounds are provided that are particularly useful as a photoresist composition component. Acid generator compounds of the invention comprise 1) a cyclic sulfonium salt and 2) a covalently linked photoacid-labile group. In one aspect, thioxanthone acid generator compounds are particularly preferred, including acid generator compounds that comprise (i) a thioxanthone moiety; and (ii) one or more covalently linked acid labile-groups.

The invention belongs to the technical field of electroluminescent materials, and discloses a compound containing 9,9-spiral thioxanthene as well as a preparation and application. The compound containing 9,9-spiral thioxanthene has the structural formula represented by formula 1 or formula 2, wherein R1 and R2 are the same or different electron-donating vinylene group, ethynylene group, aromatic ring composed of carbon and hydrogen atoms, aromatic heterocyclic ring composed of carbon, nitrogen and hydrogen atoms, aromatic heterocyclic ring composed of carbon, nitrogen, oxide and hydrogen atoms, aromatic heterocyclic ring composed of carbon, sulfur and hydrogen atoms, and aromatic heterocyclic ring composed of carbon, silicon and hydrogen atoms, C1-C24 alkyl group, alkyl-substituted conjugated unit, alkoxy-substituted conjugated unit or conjugated unit in which an alkyl group and an alkoxy group are simultaneously substituted; X is a carbon atom, a nitrogen atom, a sulfur atom, a silicon atom, an oxygen atom, carbonyl or phosphorus atom group. The compound obtained by the invention has fluorescence, and is as the light-emitting layer of an organic electroluminescent diode that can significantly improve the external quantum efficiency of the device. (The formulas are shown in the description).

The invention relates to a wear-resistant UV (ultraviolet) photocuring paint which is prepared from the following raw materials in parts by weight: 30-35 parts of high-functionality aliphatic polyurethane acrylic resin, 4-6 parts of brown fused alumina powder, 13-18 parts of 2-methyl methacrylate, 4-7 parts of isoprene, 5-9 parts of polylactic acid, 2-4 parts of sodium silicate, 2-4 parts of isopropyl thioxanthene ketone, 2-3 parts of liquid rosin resin, 3-5 parts of ricinoleic acid, 2-4 parts of propenyl glycidol ether and 4-6 parts of assistant. By adding the brown fused alumina powder, the wear resistance and flame retardancy of the UV (ultraviolet) photocuring paint are enhanced, and the cost of the paint is lowered; and the paint has the advantages of high crosslinking and curing speed, uniform film formation, high strength, favorable toughness, favorable water resistance and favorable binding property. The assistant enhances the dispersivity of the paint, so that the UV (ultraviolet) photocuring paint has favorable leveling property and the coating formed by the piant is smooth and bright.

The present invention provides a photocurable and thermosetting resin composition having excellent surface curability and deep curability, allowing pattern formation with a laser beam having a wavelength of 350 to 410 nm, and being useful as a solder resist for laser direct imaging, the composition including a carboxylic resin (A), an oxime ester-based photopolymerization initiator (B) such as 2-(acetyloxyiminomethyl)thioxanthene-9-one, and another photopolymerization initiator than (B) such as 2,4,6-trimethylbenzoyl-diphenyl-phosphine oxide, and a sulfur compound (E) such as 2-mercaptobenzothiazole.

The present invention relates to compositions and methods for promoting tissue regeneration, preferably neural tissue regeneration. Compositions of the invention include (i) certain diphenyl sulfides, diphenyl sulfoxides, diphenyl sulfones, and sulfide, sulfoxide and sulfones of dibenzothiophene and thioxanthene, as well as various analogues and derivatives of these compounds; (ii) one or more cells harvested from an animal or organism subsequent to the administration of a composition comprising a compound of (i); or (iii) any combination of (i) and (ii). The invention can be useful in treating decreases in neuronal function, for example from injury or disease.

The invention belongs to the technical field of chemical industry and particularly relates to a method for synthesizing benzoic acid through thioxanthene catalysis under the condition of illumination. The method comprises the steps of: adding a raw material, i.e., toluene, a thioxanthene catalyst and a solvent into a reactor; carrying out magnetic-stirring reaction in an air atmosphere at the reacting temperature of 25-100 DEG C; and carrying out reacting for 1-100 hours under the condition of visible-light illumination. According to the method disclosed by the invention, use of reagents, which have high corrosiveness and high toxicity and are liable to produce toxicity, in the traditional synthesis methods are avoided, so that the cleanness of industrial synthesis reaction is improved, the environmental pollution is lowered, and the energy consumption is lowered. According to the method disclosed by the invention, n-butanol is adopted as a reaction catalyst, so that the cost is reduced. The method disclosed by the invention is completed in one step, and the variety of the raw materials used is single, so that the economical efficiency of process is increased.

The invention belongs to the technical field of photoelectric materials and particularly relates to an organic small molecular material based on spiro thioxanthene and an organic photoelectric device using the material as a light emitting layer. By using spiro thioxanthene as a framework unit, the organic small molecular material can be used for obtaining a target compound by virtue of friedel craft reaction and Ullmann reaction. The material is single in structure and certain in molecular weight and has good solubility and film forming property in common solvents. The spiro structure of the material can adjust the accumulation mode of molecules, so that an exciplex is effectively prevented from emitting light, therefore, the material is of profound significance in development of high-effect devices. The photoelectric device using the material as the light emitting layer has a good light emitting performance and can be applied to organic small molecular light emitting diodes.

A synthesis method of metixene hydrochloride relates to a synthesis process of an antiparkinsonian drug. The synthesis method comprises the following steps: taking thiosalicylic acid as a raw material to obtain 2-thiophenyl benzoic acid by coupling with iodobenzene; then dehydrating and cyclizing to obtain 9-thioxanthone; reducing a carbonyl to obtain thioxanthene; and finally allowing the thioxanthene to react with 3-chloromethyl-1-pipecoline to obtain the target product (5) metixene hydrochloride shown as a formula (5) below. The synthesis method has the advantages of available raw materials, low cost, short preparation course, simple operation and easy industrialization, and helps produce the metixene hydrochloride which is the antiparkinsonian drug.

The invention belongs to the field of chemistry, and relates to a synthetic method of asymmetrical thioether. The synthetic method comprises the following steps of (a) under the condition of catalysis of tetrabutyl ammonium halide, enabling a structural compound as shown in a formula (I), a structural compound as shown in a formula (II) and sulfur oxonium salt to react in a solvent so as to obtain the asymmetrical thioether with a structure as shown in formula (III), wherein R1 is selected from phenyl, substituted phenyl, naphtyl, substituted naphtyl, thienyl, or substituted thienyl; R2 is selected from hydrogen, phenyl, substituted phenyl, naphtyl, substituted naphtyl, thienyl or substituted thienyl; or R1, R2 and C connected with R1 and R2 form fluorene or thioxanthene; R3 is selected from hydrogen or an alkyl group; R4 is selected from hydrogen, phenyl, substituted phenyl, naphtyl, substituted naphtyl, thienyl or substituted thienyl; R5 is selected from hydrogen; or R4, R5 and C connected with R4 and R5 form the fluorene or the thioxanthene; R6 is selected form the alkyl group or the substituted alkyl group; and X is selected from C1, Br or I.

The invention discloses xanthone Schiff base modified graphene quantum dots CPCG as well as a preparation method thereof and application in preparing a sodium glutamate detection reagent. The preparation method is characterized by introducing the xanthone Schiff base into nano quantum dots which are strong in water solubility, specifically for example, introducing Schiff base which is synthesizedby enabling 1-chloro-4-propoxy thioxanthene-9-ketone to react with chitosan to the graphene quantum dots, thus obtaining the xanthone Schiff base modified graphene quantum dots which are strong in water solubility and high in sodium glutamate selectivity. A synthesis method of the xanthone Schiff base modified graphene quantum dots is simple, the conditions are mild, a product can be easily obtained, a good effect can be obtained by applying the compound to sodium glutamate detection, and the compound cannot be affected by other conventional symbiotic biomolecules such as matters of glycine, arginine, methionine, glucose, glucosamine and the like, and high selectivity is obtained; a fluorescence spectrophotometer is convenient to operate, and a fluorescent signal of a sample is obvious.

The invention provides an alkali-developed paste composition which is applicable to a laser direct imaging device using an active energy radiation with the maximum wave length of 350nm to 420nm, with the advantages of being beneficial for effectively forming a fine black matrix pattern and excellent disperse stability. The invention is characterized by comprising (A) carboxyl-included resin, (B) glass powders, (C) black paints, (D) a compound with at least one free radical polymerizability unsaturated radical, (E-1) NDM series photopolymerization evocating agent such as 2-(acetoxyl group imido group methyl) thioxanthene-9-keton, and (F) aluminum compound.

The present invention is directed to certain thioxanthene derivatives and phenothiazine derivatives suitable for use as anti-infective agents, in particular, for treatment of infectious diseases. The invention furthermore relates to compositions comprising said anti-infective agents.

The invention provides a self-cleaning solar paint and a preparation method thereof. The paint comprises epoxy acrylate, polyurethane acrylate, diphenyl ketone, 2-isopropyl thioxanthene ketone, ethyl 2,4-hemellitate, 1,6-hexanediol diacrylate, ethyl silicate, fatty acyl diethanolamine, tributyl phosphate, cellulose acetate butyrate, dimethyl phenol phosphate, dimethylaminoethyl acrylate, filler, pigment and deionized water. The preparation method comprises the following steps: adding the epoxy acrylate, polyurethane acrylate, diphenyl ketone and dimethylaminoethyl acrylate into the deionized water, stirring, adding the diphenyl ketone, 2-isopropyl thioxanthene ketone, ethyl 2,4-hemellitate and 1,6-hexanediol diacrylate, stirring, adding the tributyl phosphate, cellulose acetate butyrate and dimethyl phenol phosphate, and adding the filler and pigment. The paint has the advantages of favorable hydrophilicity, favorable photocatalytic activity and favorable pollution resistance, and can enhance the generating efficiency of the solar photovoltaic electric plate.

The invention provides a naphtho-thioxanthene derivative as well as a preparation method and application thereof, belonging to the technical field of organic optoelectronic materials. The material takes naphtho-thioxanthene groups as a center for connecting two conjugate non-planar structures, thus having good electron transmission ability and greatly improving luminous efficiency; therefore, the material can be used for preparing an organic light-emitting device (OLED), and more particularly, the OLED taking the material as an electron transport material or a light-emitting layer main body material is superior to the existing commonly-used OLED. The invention also provides the preparation method of the naphtho-thioxanthene derivative; the preparation method is simple, thus being suitable for industrial production.

The invention relates to the technical field of parasitic disease prevention and treatment, and provides application of hycanthone in preparation of a medicine for treating toxoplasma gondii infection diseases. It is found that the thioxanthene compound hycanthone has remarkable inhibitory activity on virulent or attenuated toxoplasma gondii of different genotypes and can inhibit proliferation of the toxoplasma gondii, and tests find that after hycanthone acts on the toxoplasma gondii in cells for 24 h, the survival rate of the toxoplasma gondii is only 14.57%, and the hycanthone is superior to that of an existing drug pyrimethamine for treating the toxoplasma gondii. The medication spectrum of the hycanthone is developed, an effective medicine with low side effect is provided for treating acute and chronic toxoplasma gondii infection, and a good application prospect is achieved.

The invention relates to the technical field of organic electroluminescent materials, in particular to a thiaxanthene derivative as shown in a formula I and application thereof. The thiaxanthene derivative as shown in the formula I provided by the invention has a tribenzothiaxanthene ring, so that the pi-pi conjugation strength of molecules is increased, and the thermal stability and the electron transporting capability of the material are improved. For an organic electroluminescent device prepared from the material, the starting voltage can be significantly reduced, and the luminous efficiency and the brightness can be improved.